345743 has 8 divisors (see below), whose sum is σ = 376320. Its totient is φ = 316440.

The previous prime is 345739. The next prime is 345749. The reversal of 345743 is 347543.

345743 = 42² + 43² + ... + 103².

It is a Cunningham number, because it is equal to 588²-1.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 345743 - 2² = 345739 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 296 + ... + 882.

It is an arithmetic number, because the mean of its divisors is an integer number (47040).

2³⁴⁵⁷⁴³ is an apocalyptic number.

345743 is a deficient number, since it is larger than the sum of its proper divisors (30577).

345743 is a wasteful number, since it uses less digits than its factorization.

345743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637.

The product of its digits is 5040, while the sum is 26.

The square root of 345743 is about 587.9991496592. Note that the first 3 decimals coincide. The cubic root of 345743 is about 70.1861034226.

The spelling of 345743 in words is "three hundred forty-five thousand, seven hundred forty-three".